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Question

If 220 g of a substance decays to 70 g in 28 000 years, the half life of this substance is closest to: a) 17000 years b) 19000 years c) 21000 years d) 23000 years

asked Nov 27, 2024

1 answer 78.0k views

What is the the percent composition by mass of o and m in mgo?

answered Oct 21, 2024

1 answer 181k views

The activation energy Ea for a particular reaction is 42.2 kJ/mol. How much faster is the reaction at 343 K than at 323 K?

answered Aug 21, 2024

1 answer 82.5k views

Anyone know the answer to this

asked Aug 11, 2024

1 answer 161k views

Find the length of DF or state what additional information you would need to find it.

answered Aug 8, 2024

1 answer 165k views

Given is a container with a volume of 100 cubic meters. The content (CO2) is under a relative pressure of 100 mbar and has a constant temperature of 35 °C. A constant flow of 60 cubic meters per hour (relative

asked Jul 23, 2024

1 answer 234k views

What did settlers take with them as they moved westward

answered Jul 17, 2024

2 answers 189k views

"A local bakary has determined a probability distribution for the number of cheesecakes that they sell in a given day. X= #sold: 0 5 10 15 20 Probability : 0.26 0.16 0.3 ...? 0.18 What is the probability

answered Jun 14, 2024

1 answer 161k views

Match each digital interaction to the scenario that demonstrates its proper use. Option 1: Email for formal communication. Option 2: Social media for personal updates. Option 3: Video conferencing for

asked May 28, 2024

1 answer 142k views

HEAT INTRODUCTION Heat is a measure of the energy in a system. The transfer of energy is always from the system with more energy to the system with less energy. This lab has two distinct parts. In the

answered May 23, 2024

2 answers 132k views

Who ultimately decides if your service is poor, good, or outstanding?

answered Apr 17, 2024

1 answer 173k views

Drag and drop the word from the text that means "quiet and restrained."

asked Feb 25, 2024

1 answer 76.8k views

In determining if a caregiver has sufficient emotional capacity, you must assess whether the caregiver has demonstrated the following emotional maturity: A. Adequate income. B. Patience and resilience.

asked Feb 22, 2024

1 answer 60.4k views

Find the derivatwe of the tollowing function. y=(4e^(9x))/(9x+2)

answered Feb 15, 2024

1 answer 105k views

Two identical bowling balls A and B are each dropped from rest from the top of a tall tower as shown in the diagram above. Ball A is dropped 1.0 s before ball B is dropped but both balls fall for some

asked Jan 24, 2024

1 answer 122k views

Students have received the marks for their Mathematics quiz. Ali found out that Ahmad's marks is five more than double of his marks. If the total of their marks is 125, what is Ali's marks and what is

asked Jan 7, 2024

1 answer 227k views

A hot dog costs $1 at the ballpark. Which equation shows the total cost, C, of n hot dogs? ⚫️n = 1c ⚫️n = 1+c ⚫️c = 1n ⚫️c = 1 + n

asked Dec 15, 2023

2 answers 35.9k views

Jake is saving for a new tablet. It costs $250, and he has $100. He earns $5 per week for doing chores. Jake wants to figure out how many weeks it will take for him to have at least enough money to buy

asked Dec 8, 2023

1 answer 174k views

Source A is supporting the British war effort how do you know? source A: the text below appeared on a post by the government to encourage people to support the building of Tanks by buying war bonds and

answered Nov 3, 2023

1 answer 214k views

Question 1 Graph the line that passes through the two points. (1, 5/2), (−1/2,−1/4)

asked Jul 21, 2023

1 answer 75.8k views

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